A carnot engine operates between temperature levels of 600k and 300k, It drives a carnot refrigerator which provides cooling at 250k and discards heat at 300k. Determine a numerical value for the ratio of the heat extracted by the refrigerator (cooling load) to the heat delivered to the engine (heating load).

answer:

(b)

explanation:

answer:

a

explanation:

answer:

dsfdssdfdssfdsfd

explanation:

answer:

// here is code in C++.

#include <bits/stdc++.h>

using namespace std;

//main function

int main()

{

  // variable

 int n;

 cout<<"enter a number:";

 // read the input

 cin>>n;

 // find the square root of the absolute value

 float square_root=sqrt(abs(n));

 // print the square_root

 cout<<"square root of "<<n<<" is: "<<square_root<<endl;

  return 0;

}

Explanation:

Read a number from user and assign it to "n".Then find its absolute value with abs() function.Then calculate the square root of the absolute value with sqrt() function.Print the square root of the number.

Output:

enter a number:-17

square root of -17 is: 4.12311

                                                         This is easy

                                                     sinserly Natalie 7 grader (this is not that hard)